//******颜色变量******/
$primary: #4aa5f0;
$secondary: #fff100;
$danger: #d81e06;
$blue: #1070ff;
$light: #eee;
$dark: #333;

$fc: #fff;
$fill-base: #f5f5f5;

//******rem函数******/
@function px2rem($f, $base_font_size:100px){
  @return ($f / $base_font_size) * 1rem;
}

*{
  margin: 0;
  padding: 0;
}
input{
  border: none;
  -moz-appearance:none;
  -webkit-appearance : none ;/*解决ios上按钮的圆角问题*/
  border-radius: 0;/*解决ios上输入框圆角问题*/
  outline:medium;/*去掉鼠标点击的默认黄色边框*/
  background-color: transparent;

}
button{
  border: none;
  outline: none;
}

.c_input{
  border: none;
  font-size: px2rem(28px);
}
.c_btn{
  width: px2rem(600px);
  border-radius: px2rem(4px);
  background: #1070ff;
  font-size: px2rem(36px);
  box-sizing: border-box;
  padding: px2rem(20px) 0;
  color: #ffffff;
}



/*手机端实现真正的一像素边框*/
.border-1px, .border-bottom-1px, .border-top-1px, .border-left-1px, .border-right-1px {
  position: relative;
}
/*线条颜色 黑色*/
.border-1px::after, .border-bottom-1px::after, .border-top-1px::after, .border-left-1px::after, .border-right-1px::after {
    background-color: #000; 

}

/*底边边框一像素*/
.border-bottom-1px::after {
    content:"";
    position: absolute; 
    left: 0;
    bottom: 0;
    width: 100%;
    height: 1px;
    transform-origin: 0 0;
}

/*上边边框一像素*/
.border-top-1px::after {
  content:"";
   position: absolute; 
   left: 0;
   top: 0;
   width: 100%;
   height: 1px;
   transform-origin: 0 0;
}

/*左边边框一像素*/
.border-left-1px::after {
 content:"";
 position: absolute; 
 left: 0;
 top: 0;
 width: 1px;
 height: 100%;
 transform-origin: 0 0;
}

/*右边边框1像素*/
.border-right-1px::after {
         content: "";
         box-sizing: border-box;
         position: absolute; 
         right: 0;
         top: 0;
         width: 1px;
         height: 100%;
         transform-origin: 0 0;
}

/*边框一像素*/
.border-1px::after {
 content: "";
 box-sizing: border-box;
 position: absolute;
 left: 0;
 top: 0;
 width: 100%;
 height: 100%;
 border: 1px solid red;
}

/*设备像素比*/
@media only screen and (-webkit-min-device-pixel-ratio: 2.0), only screen and (min-resolution: 2dppx) {
   .border-bottom-1px::after, .border-top-1px::after {
     transform: scaleY(0.5);
   }  

  .border-left-1px::after, .border-right-1px::after {

      transform: scaleX(0.5);
   } 
  .border-1px::after {
         width: 200%;
         height: 200%;
         transform: scale(0.5);
           transform-origin: 0 0;
    }
}

/*设备像素比*/
@media only screen and (-webkit-min-device-pixel-ratio: 3.0), only screen and (min-resolution: 3dppx) {
  .border-bottom-1px::after, .border-top-1px::after {
     transform: scaleY(0.333);
  } 
  .border-left-1px::after, .border-right-1px::after {
    transform: scaleX(0.333);
  } 
 .border-1px::after {
     width: 300%;
     height: 300%;
     transform: scale(0.333);
     transform-origin: 0 0;
 }
}